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  2. Astigmatism - Wikipedia

    en.wikipedia.org/wiki/Astigmatism

    Although astigmatism may be asymptomatic, higher degrees of astigmatism may cause symptoms such as blurred vision, double vision, squinting, eye strain, fatigue, or headaches. [7] Some research has pointed to the link between astigmatism and higher prevalence of migraine headaches.

  3. Cervicogenic headache - Wikipedia

    en.wikipedia.org/wiki/Cervicogenic_headache

    Cervicogenic headache is a type of headache characterized by chronic hemicranial pain referred to the head from either the cervical spine or soft tissues within the neck. [1] [2] The main symptoms of cervicogenic headaches include pain originating in the neck that can travel to the head or face, headaches that get worse with neck movement, and limited ability to move the neck.

  4. Cerebrospinal fluid leak - Wikipedia

    en.wikipedia.org/wiki/Cerebrospinal_fluid_leak

    The most common symptom of a spinal CSF leak is a fast-onset, extremely painful orthostatic headache. [23] [25] This headache is usually made worse by standing and typically becomes prominent throughout the day, with the pain becoming less severe when lying down. [26] Orthostatic headaches can become chronic and disabling to the point of ...

  5. Astigmatism (optical systems) - Wikipedia

    en.wikipedia.org/wiki/Astigmatism_(optical_systems)

    Astigmatism is quite common. Studies have shown that about one in three people suffers from it. [6] [7] [8] The prevalence of astigmatism increases with age. [9] Although a person may not notice mild astigmatism, higher amounts of astigmatism may cause blurry vision, squinting, asthenopia, fatigue, or headaches. [10] [11] [12]

  6. Acephalgic migraine - Wikipedia

    en.wikipedia.org/wiki/Acephalgic_migraine

    Acephalgic migraine (also called migraine aura without headache, amigrainous migraine, isolated visual migraine, and optical migraine) is a neurological syndrome. It is a relatively uncommon variant of migraine in which the patient may experience some migraine symptoms such as aura , nausea , photophobia , and hemiparesis , but does not ...

  7. Occipital neuralgia - Wikipedia

    en.wikipedia.org/wiki/Occipital_neuralgia

    Patients presenting with a headache originating at the posterior skull base should be evaluated for ON. This condition typically presents as a paroxysmal, lancinating or stabbing pain lasting from seconds to minutes, and therefore a continuous, aching pain likely indicates a different diagnosis. Bilateral symptoms are present in one-third of cases.

  8. Chiari malformation - Wikipedia

    en.wikipedia.org/wiki/Chiari_malformation

    [27] [28] [40] [41] Syringomyelia of cervical or cervicothoracic spinal cord can be seen. Sometimes the medullary kink and brainstem elongation can be seen. Can be congenital, or acquired through trauma. When congenital, may be asymptomatic during childhood, but often manifests with headaches and cerebellar symptoms.

  9. Inflammatory demyelinating diseases of the central nervous ...

    en.wikipedia.org/wiki/Inflammatory_demyelinating...

    Inflammatory demyelinating diseases (IDDs), sometimes called Idiopathic (IIDDs) due to the unknown etiology of some of them, are a heterogenous group of demyelinating diseases - conditions that cause damage to myelin, the protective sheath of nerve fibers - that occur against the background of an acute or chronic inflammatory process.